Problems with building compelling mobile services

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Information about Problems with building compelling mobile services
Technology

Published on November 13, 2008

Author: taptu

Source: slideshare.net

Description

Taptu presentation at Mobile 2.0 San Francisco by Stefan Butlin

with building s problem compelling mobile services Stefan Butlin CTO November 3, 2008 Mobile Monday Mobile Search Mobile Monday Best search provider Commercial category Global Winner 2008 Company of the 2008 UK Winner 2008 Winner 2008 Winner 2008

Quick Poll mobile search made social.

What’s so hard about mobile websites? Handset diversity User identification Selling ads Building audience Integrating SMS Transcoders Getting feedback Testing mobile search made social.

Handsets: are any two alike? mobile search made social.

Handsets vary in every way  Markup language support  Browser vendor and version  Screen size and depth  Audio and video codecs  Input methods mobile search made social.

Quirks we workaround  SonyEricssons oversize their text  some Nokias struggle with float  OperaMini used to centre images  some Samsungs display source CSS  Moto Razr has tiny page size limit  many browsers don’t know screen width  iPhone doesn’t always get display:none mobile search made social.

Strategies  Lowest common denominator  Tough love  Conditional markup  Templating toolkits  Capability databases  WURFL  DeviceAtlas  Build your own mobile search made social.

Taptu handset customisation  WURFL for the basics (screensize etc)  Augment with proprietary DB of browser quirks  Group handsets into major classes  Invest detailed design per class  Parameters handle variation within class mobile search made social.

The Taptu social divide  iPhone/iClone (touch, ajax, big display)  midPhone (Nokia S60, Windows Mobile)  loPhone (Motorolas, xHTML mobile 1.0 etc)  blackberry (in a class all of its own)  (and no support for WML1.0) mobile search made social.

Transcoders  Novarra  get whitelisted where possible  try cache-control: no-transform  find real UA in x-Device-User-Agent  Google (GWT)  put meta tags in to specify mobile versions  Keep an eye on your logs mobile search made social.

User Identification is tricky ? ? ? ? ? ? ? ? ? mobile search made social.

Indigestible Cookies  Cookie support is hard to read  First challenge is getting cookies back at all  Then try getting cookies back after users exit their browsers  Surprisingly few phones persist cookies after rebooting mobile search made social.

Carriers know who’s calling  Carriers proxy every request  Possible to have user ID added to HTTP headers  200+ carriers worldwide is a lot of deals  but not on WiFi mobile search made social.

UserID - Some Taptu choices  URL session management  Cookies where they work  Optimistic user-account creation  Designed for massive churn in user records mobile search made social.

Testing: same problem mobile search made social.

Testing Strategies  Setup in every country, buy every phone  Sample your home market and hope  Read your feedback forums  Enroll local mobile retailers  Check out DeviceAnywhere mobile search made social.

Taptu Testing  growing collection of in-house handsets  DeviceAnywhere  test any handset, many markets  enables outsourcing  bulk screenshot collection  automated regression testing  can’t spot browser quirks, but  spots missing content, wrong pages, crashes mobile search made social.

Give your users a voice  Host feedback forums  Brace for honesty!  Cultivate advocates  Surprising demand for just chat  Run mobile-friendly surveys mobile search made social.

Measure Everything  mobile stats are an inaccurate science  filter on “detectably repeat users”  IP for country of origin only  Carriers proxy everything  Norway comes in high  3rd party analytics solutions available  review how unique users are identified mobile search made social.

thank you Stefan Butlin CTO November 3, 2008 Mobile Monday Mobile Search Mobile Monday Best search provider Commercial category Global Winner 2008 Company of the 2008 UK Winner 2008 Winner 2008 Winner 2008

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